2. 外语
  3. Colds are caused by exposure to severe weather. Colds are caused by viruses hiden in the body.

Colds are caused by exposure to severe weather. Colds are caused by viruses hiden in the body.

admin2009-06-15  47
问题 Colds are caused by exposure to severe weather.
Colds are caused by viruses hiden in the body.
选项 A、Right
B、Wrong
C、Not mentioned
答案A
解析 见第一段第二句。
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